tema Re: Ghost lines appear in extruded geometry en AutoCAD for Mac Forum

Ghost lines appear in extruded geometry

Anonymous — Sun, 15 Mar 2015 01:19:51 GMT

After drawing lines/arcs, joining and then extruding, phantom lines appear in the geometry in Model space.

They shift/disappear/reappear sporadically as I pan and zoom. Seems to only effect shallow extrusions (1/4" lauan material).

Any way to fix this?

Re: Ghost lines appear in extruded geometry

maxim_k — Sun, 15 Mar 2015 08:22:51 GMT

Hi,

I cannot reproduce this issue on my side with any Visual Style. Can you attach your drawing here?

Maxim

Re: Ghost lines appear in extruded geometry

Anonymous — Thu, 11 Jun 2015 17:57:21 GMT

I have the same problem except it is in paper space. Phantom lines will appear on objects, usually connecting with something like a hole in the solid object. If I zoom in close they go away. But when I print the layout the lines print as well. I have attached a page where this appears. It is in an isometric view of a round flat lid. Any help would be appreicated.

Re: Ghost lines appear in extruded geometry

maxim_k — Thu, 11 Jun 2015 18:57:48 GMT

Welcome to Autodesk Forums!

Hi,
Could you attach DWG file with his issue?

Maxim

Re: Ghost lines appear in extruded geometry

Anonymous — Fri, 12 Jun 2015 16:46:57 GMT

Here is the cad from which that layout came from...you can see lots of examples of the issure in here. Thanks

Re: Ghost lines appear in extruded geometry

maxim_k — Sat, 13 Jun 2015 14:27:40 GMT

Hi,

I can reproduce the issue on my side.
After quick investigation I can say that this issue could be a bug in AutoCAD (in both versions - for Mac and for PC): these lines appears in viewport with visual style other than 2D Wireframe when 3D Solids are extremely thin in compare to its area.
Look here:

http://forums.autodesk.com/t5/autocad-2007-2008-2009/quot-ghost-quot-lines-on-thin-3d-solids/td-p/1955275

You can try to use SOLPROF workaround or create flatten view of 3D objects with FLATSHOT command, than put the result to Layout.

Maxim